Varun Bahl / CyaSSL-Encryp

cya_u

Fork of CyaSSL-forEncrypt by Mobius IoT

des3.h@0:5045d2638c29, 2011-02-05 (annotated)

Committer:
toddouska
Date:
Sat Feb 05 01:09:17 2011 +0000
Revision:
0:5045d2638c29
Beta Version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
toddouska 0:5045d2638c29 1 /* des3.h
toddouska 0:5045d2638c29 2 *
toddouska 0:5045d2638c29 3 * Copyright (C) 2006-2009 Sawtooth Consulting Ltd.
toddouska 0:5045d2638c29 4 *
toddouska 0:5045d2638c29 5 * This file is part of CyaSSL.
toddouska 0:5045d2638c29 6 *
toddouska 0:5045d2638c29 7 * CyaSSL is free software; you can redistribute it and/or modify
toddouska 0:5045d2638c29 8 * it under the terms of the GNU General Public License as published by
toddouska 0:5045d2638c29 9 * the Free Software Foundation; either version 2 of the License, or
toddouska 0:5045d2638c29 10 * (at your option) any later version.
toddouska 0:5045d2638c29 11 *
toddouska 0:5045d2638c29 12 * CyaSSL is distributed in the hope that it will be useful,
toddouska 0:5045d2638c29 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
toddouska 0:5045d2638c29 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
toddouska 0:5045d2638c29 15 * GNU General Public License for more details.
toddouska 0:5045d2638c29 16 *
toddouska 0:5045d2638c29 17 * You should have received a copy of the GNU General Public License
toddouska 0:5045d2638c29 18 * along with this program; if not, write to the Free Software
toddouska 0:5045d2638c29 19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
toddouska 0:5045d2638c29 20 */
toddouska 0:5045d2638c29 21
toddouska 0:5045d2638c29 22 #ifndef NO_DES3
toddouska 0:5045d2638c29 23
toddouska 0:5045d2638c29 24 #ifndef CTAO_CRYPT_DES3_H
toddouska 0:5045d2638c29 25 #define CTAO_CRYPT_DES3_H
toddouska 0:5045d2638c29 26
toddouska 0:5045d2638c29 27
toddouska 0:5045d2638c29 28 #include "types.h"
toddouska 0:5045d2638c29 29
toddouska 0:5045d2638c29 30
toddouska 0:5045d2638c29 31 #ifdef __cplusplus
toddouska 0:5045d2638c29 32 extern "C" {
toddouska 0:5045d2638c29 33 #endif
toddouska 0:5045d2638c29 34
toddouska 0:5045d2638c29 35 enum {
toddouska 0:5045d2638c29 36 DES_BLOCK_SIZE = 8,
toddouska 0:5045d2638c29 37 DES_KS_SIZE = 32,
toddouska 0:5045d2638c29 38
toddouska 0:5045d2638c29 39 DES_ENCRYPTION = 0,
toddouska 0:5045d2638c29 40 DES_DECRYPTION = 1,
toddouska 0:5045d2638c29 41 };
toddouska 0:5045d2638c29 42
toddouska 0:5045d2638c29 43
toddouska 0:5045d2638c29 44 /* DES encryption and decryption */
toddouska 0:5045d2638c29 45 typedef struct Des {
toddouska 0:5045d2638c29 46 word32 key[DES_KS_SIZE];
toddouska 0:5045d2638c29 47 word32 reg[DES_BLOCK_SIZE / sizeof(word32)]; /* for CBC mode */
toddouska 0:5045d2638c29 48 word32 tmp[DES_BLOCK_SIZE / sizeof(word32)]; /* same */
toddouska 0:5045d2638c29 49 } Des;
toddouska 0:5045d2638c29 50
toddouska 0:5045d2638c29 51
toddouska 0:5045d2638c29 52 /* DES3 encryption and decryption */
toddouska 0:5045d2638c29 53 typedef struct Des3 {
toddouska 0:5045d2638c29 54 word32 key[3][DES_KS_SIZE];
toddouska 0:5045d2638c29 55 word32 reg[DES_BLOCK_SIZE / sizeof(word32)]; /* for CBC mode */
toddouska 0:5045d2638c29 56 word32 tmp[DES_BLOCK_SIZE / sizeof(word32)]; /* same */
toddouska 0:5045d2638c29 57 } Des3;
toddouska 0:5045d2638c29 58
toddouska 0:5045d2638c29 59
toddouska 0:5045d2638c29 60 void Des_SetKey(Des* des, const byte* key, const byte* iv, int dir);
toddouska 0:5045d2638c29 61 void Des_CbcEncrypt(Des* des, byte* out, const byte* in, word32 sz);
toddouska 0:5045d2638c29 62 void Des_CbcDecrypt(Des* des, byte* out, const byte* in, word32 sz);
toddouska 0:5045d2638c29 63
toddouska 0:5045d2638c29 64 void Des3_SetKey(Des3* des, const byte* key, const byte* iv, int dir);
toddouska 0:5045d2638c29 65 void Des3_CbcEncrypt(Des3* des, byte* out, const byte* in, word32 sz);
toddouska 0:5045d2638c29 66 void Des3_CbcDecrypt(Des3* des, byte* out, const byte* in, word32 sz);
toddouska 0:5045d2638c29 67
toddouska 0:5045d2638c29 68
toddouska 0:5045d2638c29 69 #ifdef __cplusplus
toddouska 0:5045d2638c29 70 } /* extern "C" */
toddouska 0:5045d2638c29 71 #endif
toddouska 0:5045d2638c29 72
toddouska 0:5045d2638c29 73 #endif /* NO_DES3 */
toddouska 0:5045d2638c29 74 #endif /* CTAO_CRYPT_DES3_H */
toddouska 0:5045d2638c29 75